Function mdbx_env_set_geometry

pub unsafe extern "C" fn mdbx_env_set_geometry(
    env: *mut MDBX_env,
    size_lower: isize,
    size_now: isize,
    size_upper: isize,
    growth_step: isize,
    shrink_threshold: isize,
    pagesize: isize,
) -> c_int